good idea, keep us updated... HOWEVER i will give u a word of caution... i have opened up the vita and looked it over, u have some room to play w/ in the back if u cut into the support for the rear touch (be careful though as this will weaken the integrity of the rear touch), ALSO it is a capacitive touch in the rear so make sure your bigger battery wont break the capacitive field or else it will interfere with your playing... and fb browsing/internet. keep us updated tho and if you need any help hmu